Don't get me wrong, I always enjoy the rep, but today made me curious, I got five reps for an upvote on an answer, and ten on the same day:
Can't remember this ever happened to me before. Tiny bug?
I've checked your profile and yes, that is absolutely possible, you've got one upvote for your question (= 5 reputation points) and you've got another upvote for your own answer (= 10 reputation points). Obviously you seem to be new to the Stack Exchange system ... hope you don't mind the joke. :)